domoritz commented on code in PR #41965:
URL: https://github.com/apache/arrow/pull/41965#discussion_r1629685248
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js/src/ipc/writer.ts:
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@@ -294,9 +294,9 @@ export class RecordBatchWriter<T extends TypeMap = any>
extends ReadableInterop<
if (!prevDictionary || prevDictionary.data[0] !== chunks[0]) {
// * If `index > 0`, then `isDelta` is true.
// * If `index = 0`, then `isDelta` is false, because this is
either the initial or a replacement DictionaryMessage.
- chunks.forEach((chunk, index) =>
this._writeDictionaryBatch(chunk, id, index > 0));
+ for (const [index, chunk] of chunks.entries())
this._writeDictionaryBatch(chunk, id, index > 0);
Review Comment:
just confirming that this is what you want
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